PromptOT is a block-based prompt management platform for AI teams. Instead of managing LLM prompts as hardcoded strings scattered across your codebase, PromptOT lets you compose prompts from structured, typed blocks — role, context, instructions, guardrails, and output format — that compile into production-ready prompts. Every change creates a version with instant rollback. Deliver compiled prompts to any application with a single API call using environment-scoped keys that separate development from production. Teams collaborate across roles: engineers define structure while domain experts and product managers edit content directly without touching code. Built-in AI co-pilot suggests improvements grounded in prompt engineering best practices. Webhook notifications integrate with CI/CD pipelines. The MCP server exposes 23 tools for use with Claude Desktop, Cursor, ChatGPT, and other AI editors. Free tier available with no credit card required. Paid plans unlock unlimited prompts, team collaboration, version history, and webhook delivery.